"As SCP-XXXX is spread all over the world and has no containment necessary symptom in most of the cases, it is practically impossible to chase every infectees.

No sure what you mean by this sentence. Could you explain?

Furthermore, SCP-XXXX-p often affects positively to the society. As so Should be 'As such', collecting SCP-XXXX-p objects when it's necessary and monitoring infectees with heavy symptom would be enough for the containment procedures. Should be 'monitoring infectees with severe symptoms' perhaps. Perhaps someone else can clarify that. Those who shows strong symptom of late stage of Phase-4 should be captured or terminated as soon as it's assured I assume when you say 'assured' you mean definite that they're infected? In which case it should be 'as soon as it's confirmed.'. Discussion and research for efficient containment of SCP-XXXX-p-5 and -6 activated by some musicians and performance artists are 'is', not 'are' ongoing.

When SCP-XXXX-p is seriously anomalous, it would be reclassified and contained as a separate object. Should be 'When SCP-XXXX-p becomes excessively anomalous, it should be reclassified and contained as a separate object.'"

"SCP-XXXX is fungi inhabiting inside Should be 'fungi inhabiting the human body'. human body. Roughly more than 80 % of population Should be 'More than 80%' around the world have history of SCP-XXXX and infection can be recurrent or accumulated. It is transmitted primarily via exchange of bodily fluids especially through sexual contact and from mother to child during pregnancy as SCP-XXXX Side Note: Mother and child do not share bodily fluids whilst the child is in the womb. There's a gas exchange, and nutrients, minerals, etc are exchanged, but at no point does the mother's blood come into contact with the child's blood. and its spore have extremely low viability What do you mean by 'extremely low viability'? . Immune system is also critical to the subject, however, when it successfully reaches the brain, it effects on brain to suppress immunity against SCP-XXXX which comes along with hallucination through 4 phases. Should be 'however, when it successfully reaches the brain, its effects on the brain suppress the body's immune response to SCP-XXXX, which causes hallucinations in four (4) phases.'"

"Phase-1: Brain infection usually begins Should be 'Infection of the brain usually occurs' at 'at a' not 'at' young age. Yet it is unspecific and ambiguous, strong desire to describe the hallucination occurs and sometimes it could cause slight mental problem Should be 'strong desire to describe the hallucination occurs and in some cases can cause slight mental problems'. SCP-XXXX transfers away from the brain or gets spontaneously cured if the infectee ignores it, but when (s)he physically describes the hallucination, SCP-XXXX settles on the brain.
Phase-2: SCP-XXXX forms sporocyst and makes the hallucination specific. The knowledge needed to detail itself is accompanied with the hallucination and the desire, which push the infectee to make 'artistic creations'. Once infection is developed to Phase-2, it's spontaneous cure rate drops sharply. This phenomenon is concerned as 'artistic inspiration'. Should be 'This phenomenon is known as 'artistic inspiration'' (I think. May need clarification.
Phase-3: Spores begin to mature and are found in the infectee's fluids. Relationship with certain opposite sexuality 'oppposite sexuality' implies that it occurs when, say, a heterosexual is in a relationship with a homosexual. Is this intended? Or did you mean opposite gender? make the hallucination stronger and more frequently. It makes infectee to think the hallucination is caused by the one making relation Should be 'It causes the infectee to believe the hallucination is caused by the other member of the relationship.'. Result of the inspiration might strongly effect on the reality sometimes. Should be 'The results of the inspiration may strongly affect reality at times.'
Phase-4: When infectees doesn't discharge spore of SCP-XXXX enough, they might suffer from serious mental disease by high density of hallucination or problem with controling their sexual desire led by the desire to discharge the spore. When there are more than roughly 700,000 ~ 1,500,000 spore in 1 ml of fluids, [DATA EXPUNGED]. Should be 'When infectee does not discharge SCP-XXXX spores sufficiently, they may suffer serious mental illness by way of high number of hallucinations or problems with controlling sexual desire, led by desire to discharge additional spores. When there are more than ~700,000 to ~1,500,000 spores per 1ml of fluid, [DATA EXPUNGED].'"

"SCP-XXXX-p is the result of 'inspiration'. Steady exposure of the SCP-XXXX-p Should be 'Steady exposure to SCP-XXXX-p' causes minor suppression of immunity against the subject Should be 'against the infection' and have weak implication to be attracted by author of SCP-XXXX-p Should be 'and have the possible implication of being attracted by to the author of SCP-XXXX-p' which can be accumulated and induce exchange bodily fluids with the infectee Should be 'which can accumulate and induce attempts to exchange bodily fluids of infectee with that of the author' (I think). SCP-XXXX-p is sorted as p-1~-6 by its nature Should be SCP-XXXX-p is sorted as p-1 to p-6 by order of severity' (I think).

"SCP-XXXX-p-1: "Normal" artistic works which gives minor emotional change. They shouldn't be secured and contained.
SCP-XXXX-p-2: Artistic work which causes extremely strong or semipermanent emotional change with mental problem such as anomalous compulsion, Stendhal syndrome, etc. Some should be secured while some doesn't have to be Should be 'Some infectees at this stage of the disease should be secured; most do not have to be.'. Field agents can make arbitrary decisions for that Should be 'This will be left at Field Agents' discretion'.
SCP-XXXX-p-3: Physically abnormal artistic work with simple/minor anomaly.
SCP-XXXX-p-4: Physically abnormal artistic work with complicated/major anomaly
SCP-XXXX-p-5: Awaiting its own SCP item number.
SCP-XXXX-p-6: [DATA EXPUNGED]"

Please collapse long posts. ~Zyn

That's as much as I've gotten through. Seems interesting, but quite long winded. Perhaps some of the later information can be made into addendums?

As SCP-XXXX is spread all over the world and has no containment necessary symptom in most of the cases

From here, we can see some weird syntax and wording (and relatively colloquial writing in what is supposed to be formal writing at least). Instead of "spread all over the world", I will suggest "global distribution". Ditto for "containment necessary symptom", I suggest "lack of any overt anomalous symptoms".

it is practically impossible to chase every infectees.

"chase infectees" sounds weird and inconsistent from any formal tone. I will suggest "contain all known infected persons".

Furthermore, SCP-XXXX-p often affects positively to the society.

I think this can be left for the description. As far as the procedures are concerned, talk about what needs to be done by the Foundation.

When SCP-XXXX-p is seriously anomalous, it would be reclassified and contained as a separate object.

What do you mean by "seriously anomalous"? By being anomalous enough to be filed as an SCP, that alone implies the Foundation taking it seriously. What's the point of classifying a related anomaly separately?

SCP-XXXX is fungi inhabiting inside human body

I will suggest to include "the" in between "inside" and "human", since English likes to use determiners just as much as East Asian languages engage with particles.

Relationship with certain opposite sexuality

Since sex is something that is not necessarily between the two sexes (I hope we do not debate about this topic here), I will suggest "sexual desires" in general.

caused by the one making relation

The "one making relation" sounds odd in English. I will suggest "seemed to be caused by an infected person's partner".

When there are more than roughly 700,000 ~ 1,500,000 spore in 1 ml of fluids, [DATA EXPUNGED]

I don't feel it is good example of [DATA EXPUNGED]. The buildup is rather poor (hallucinations and mental illnesses). It does not leave room for readers to do Wild Mass Guessing/speculate on what is behind [DATA EXPUNGED].

SCP-XXXX-p is the result of 'inspiration'.

Inspiration in general? Or inspiration as caused by SCP-XXXX? It is not clear here. And what is it exactly? Something physical, a concept, or something else? It is not described clearly to be understood.

My main concern lies in why would the Foundation deem it to be anomalous. If a majority of humanity has it, the SCP feels more like a disease than anomaly. The first half of the article plays it as though it could be a non-anomalous illness.

The second half tries to go about that the arts is a byproduct of an SCP. That concept can have interesting implications, but the execution flops. It is weakly introduced as "result of 'inspiration', and the sub-designations of SCP-XXXX-p seems to run the scale of increasing danger levels. Also, the last part has to outright state that the arts are anomalous. I find that to be on-the-nose and does not engage the readers to care about the SCP.

A few questions to be food for thought. Why will a fungi inspire humans to create art pieces? Is there reason behind this? When did the Foundation realise that the arts is not really normal (did the fungi conduct their real plan?)?

I will suggest to come up with your name for the group, or just use "Council of [REDACTED]. There is no real reason for ambiguity here.

as there's no scientific explanation for the effect of art on human.

As a social scientist myself, I find it painful to see this statement. I mean, we have Humanities and Social Sciences for a reason. This statement feels like one of the many generic lines said by people not from Humanities and Social Sciences, than a legit summary of why is it anomalous.

After reading this supplement as well, I feel that your articles' greatest weakness is its assertion that the arts (in general) are anomalous. Your job here would be to convince readers that that is the case, but it feels as though you are lumping all of the arts in a single category without distinction. I mean, if the arts are anomalous, what does that make anart or anomalous arts?

Your supplement seems to involve the unnamed GoI heavily, which I would strongly suggest to give them a proper name so that it could parsed well.

I will disagree with your use of a timeline structure for the supplement, since it hardly engages with readers and does not do your content justice. Why not show the documents from the Council of [REDACTED] which justifies the anomaly of the arts, or the many reports detailing the suppression attempts etc.?